Matter and Energy Vocabulary Words

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Across
  1. 4. wind, water, geothermal, solar, and biomass
  2. 7. a substance that cannot be broken down
  3. 8. just before a ball lands, it has most __ energy
  4. 9. the variable that is being measured in an exp.
  5. 11. protons,neutrons,and electrons are __ particles
  6. 15. heat energy is also called ___ energy
  7. 17. the atomic number (top #) tells us how many ____
  8. 18. nearly all energy on earth originates from this
  9. 19. compounds are held together by _____
  10. 20. subatomic particle with no charge
Down
  1. 1. the variable that I change in an experiment
  2. 2. light energy is also called ___ energy
  3. 3. fossil fuels are what type of energy source
  4. 5. contains the protons and neutrons
  5. 6. subatomic particle that has a negative charge
  6. 10. appliances that plug in use ___ energy
  7. 12. the building blocks of all matter
  8. 13. two or more elements bonded together chemically
  9. 14. energy a bike has sitting at the top of a hill
  10. 16. reducing energy use